Add options to prevent download if sponsorblock entry not found

[ConorShore]

Add options to prevent download if sponsorblock entry not found

[pukkandan]

I believe it can already be done with --match-filter. Pls provide some examples I can test commands on

[bashonly]

Here's the long-awaited example URL: https://www.youtube.com/watch?v=nGIpdiQrFDU

yt-dlp does indeed fetch the sponsorblock data after --match-filter is checked against, so it is not currently possible to do this in a single run of yt-dlp.

There is a workaround, however; you could do something like this (for a single video):

yt-dlp --write-info-json --skip-download --sponsorblock-mark all -o "sponsorblock_check.%(ext)s" "https://www.youtube.com/watch?v=nGIpdiQrFDU" && yt-dlp --load-info-json "sponsorblock_check.info.json" --match-filter sponsorblock_chapters

Any additional options for downloading could be passed to the second invocation of yt-dlp (so anywhere after --match-filter sponsorblock_chapters), e.g. if you want to use --sponsorblock-mark all or --sponsorblock-remove all, you would add them there.

Note that you do not need to pass the URL to the second invocation; all data is being extracted from the info json written by the first yt-dlp call.

Here's a slightly more advanced example of a workaround that could be used with a playlist/channel or --batch-file/-a:

yt-dlp --write-info-json --skip-download --sponsorblock-mark all -o "sponsorblock_check.%(ext)s" --batch-file links.txt --exec "yt-dlp --load-info-json sponsorblock_check.info.json --match-filter sponsorblock_chapters --sponsorblock-remove sponsor"

Note that any output template args should be stashed in a config file since they will not be passed to the inner yt-dlp call correctly if done in the command line.